Image Forming Apparatus Sheet Separation and Lamination Control
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Solution Overview
Problem
Existing image forming apparatuses face challenges in efficiently separating and laminating two-ply sheets, leading to reduced productivity and potential sheet separation failures due to heat-induced bonding before the inner sheet is inserted.
Innovation Solution
The apparatus incorporates a sheet separation device that separates the non-bonding portion of a two-ply sheet and feeds an inner sheet between the two sheets, with circuitry controlling the sheet feeders to perform these operations concurrently, reducing the time required for sheet lamination and preventing heat-induced bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sheet separation device separates the two-ply sheet before feeding the inner sheet, then the sheets are properly separated, but the lamination process time increases and productivity decreases
Solution Approach 1:
The sheet separation device performs preliminary separation of the two-ply sheet by inserting separation claws into the non-bonding portion before the inner sheet is fed. This preliminary action ensures the sheets are pre-separated and ready for immediate lamination, eliminating the need for waiting time between separation and lamination operations
Solution Approach 2:
The system maintains continuous operation by overlapping the sheet separation process with the inner sheet feeding process. While the two-ply sheet is being separated, the inner sheet is simultaneously being fed from the sheet feeder, ensuring no idle time occurs between operations and maintaining continuous productive action
2Manufacturing precision
If the inner sheet feeding is delayed until after sheet separation completion, then the separation operation can be completed fully, but the overall processing time increases
Solution Approach 1:
The separation claws are inserted into the non-bonding portion of the two-ply sheet in advance, performing the separation action preliminarily. This allows the separation process to overlap with the inner sheet feeding process, reducing total time while ensuring separation precision is maintained through the dedicated separation device
Solution Approach 2:
The system dynamically coordinates the timing of sheet separation and inner sheet feeding operations. The sheet separation device and sheet feeder are controlled to operate in an overlapping timeframe, with the separation claws being inserted and positioned while the inner sheet is simultaneously being fed, optimizing both precision and time efficiency
Data Source
AI summary
An image forming apparatus includes a sheet separation device, a first sheet feeder, a second sheet feeder, an image forming device, and circuitry. The sheet separation device is configured to separate a non-bonding portion of a two-ply sheet in which two sheets are overlapped and bonded together at a bonding portion of the two-ply sheet. The first sheet feeder is configured to feed the two-ply sheet. The second sheet feeder is configured to feed an inner sheet to be inserted between the two sheets. The image forming device is configured to form an image on a surface of the inner sheet. The circuitry is configured to cause the first sheet feeder to feed the two-ply sheet, perform a sheet separating operation on the two-ply sheet and cause the second sheet feeder to start feeding the inner sheet before completion of the sheet separating operation on the two-ply sheet.